diff --git a/gapic-generator-ads/Gemfile b/gapic-generator-ads/Gemfile
index c6d54563f..2b2405b51 100644
--- a/gapic-generator-ads/Gemfile
+++ b/gapic-generator-ads/Gemfile
@@ -10,7 +10,7 @@ gemspec
 gem "gapic-generator", path: "../gapic-generator"
 
 gem "grpc-tools", ">= 1.60.0", "< 1.75.1"
-gem "minitest", "~> 5.16"
+gem "minitest", ">= 5.16", "< 7"
 gem "minitest-autotest", "~> 1.0"
 gem "minitest-focus", "~> 1.0"
 gem "pry", ">= 0.14"
diff --git a/gapic-generator-ads/Gemfile.lock b/gapic-generator-ads/Gemfile.lock
index 807f1761d..93ee6ad45 100644
--- a/gapic-generator-ads/Gemfile.lock
+++ b/gapic-generator-ads/Gemfile.lock
@@ -78,7 +78,7 @@ GEM
       crass (~> 1.0.2)
       nokogiri (>= 1.12.0)
     method_source (1.1.0)
-    minitest (5.26.0)
+    minitest (5.27.0)
     minitest-autotest (1.1.1)
       minitest-server (~> 1.0)
       path_expander (~> 1.0)
@@ -148,7 +148,7 @@ DEPENDENCIES
   gapic-generator!
   gapic-generator-ads!
   grpc-tools (>= 1.60.0, < 1.75.1)
-  minitest (~> 5.16)
+  minitest (>= 5.16, < 7)
   minitest-autotest (~> 1.0)
   minitest-focus (~> 1.0)
   pry (>= 0.14)
diff --git a/gapic-generator-cloud/Gemfile b/gapic-generator-cloud/Gemfile
index 98e06a5e0..42324e2c9 100644
--- a/gapic-generator-cloud/Gemfile
+++ b/gapic-generator-cloud/Gemfile
@@ -10,7 +10,7 @@ gemspec
 gem "gapic-generator", path: "../gapic-generator"
 
 gem "grpc-tools", ">= 1.60.0", "< 1.75.1"
-gem "minitest", "~> 5.16"
+gem "minitest", ">= 5.16", "< 7"
 gem "minitest-autotest", "~> 1.0"
 gem "minitest-focus", "~> 1.0"
 gem "pry", ">= 0.14"
diff --git a/gapic-generator-cloud/Gemfile.lock b/gapic-generator-cloud/Gemfile.lock
index c92e7572d..0e8bddfb1 100644
--- a/gapic-generator-cloud/Gemfile.lock
+++ b/gapic-generator-cloud/Gemfile.lock
@@ -78,7 +78,7 @@ GEM
       crass (~> 1.0.2)
       nokogiri (>= 1.12.0)
     method_source (1.1.0)
-    minitest (5.26.0)
+    minitest (5.27.0)
     minitest-autotest (1.1.1)
       minitest-server (~> 1.0)
       path_expander (~> 1.0)
@@ -148,7 +148,7 @@ DEPENDENCIES
   gapic-generator!
   gapic-generator-cloud!
   grpc-tools (>= 1.60.0, < 1.75.1)
-  minitest (~> 5.16)
+  minitest (>= 5.16, < 7)
   minitest-autotest (~> 1.0)
   minitest-focus (~> 1.0)
   pry (>= 0.14)
diff --git a/gapic-generator/Gemfile b/gapic-generator/Gemfile
index c1cb7c70f..38607b31b 100644
--- a/gapic-generator/Gemfile
+++ b/gapic-generator/Gemfile
@@ -8,7 +8,7 @@ git_source(:github) { |repo_name| "https://github.com/#{repo_name}" }
 gemspec
 
 gem "grpc-tools", ">= 1.60.0", "< 1.75.1"
-gem "minitest", "~> 5.16"
+gem "minitest", ">= 5.16", "< 7"
 gem "minitest-autotest", "~> 1.0"
 gem "minitest-focus", "~> 1.0"
 gem "pry", ">= 0.14"
diff --git a/gapic-generator/Gemfile.lock b/gapic-generator/Gemfile.lock
index c28ff114f..93b4347ab 100644
--- a/gapic-generator/Gemfile.lock
+++ b/gapic-generator/Gemfile.lock
@@ -72,7 +72,7 @@ GEM
       crass (~> 1.0.2)
       nokogiri (>= 1.12.0)
     method_source (1.1.0)
-    minitest (5.26.0)
+    minitest (5.27.0)
     minitest-autotest (1.1.1)
       minitest-server (~> 1.0)
       path_expander (~> 1.0)
@@ -141,7 +141,7 @@ PLATFORMS
 DEPENDENCIES
   gapic-generator!
   grpc-tools (>= 1.60.0, < 1.75.1)
-  minitest (~> 5.16)
+  minitest (>= 5.16, < 7)
   minitest-autotest (~> 1.0)
   minitest-focus (~> 1.0)
   pry (>= 0.14)
diff --git a/shared/Gemfile b/shared/Gemfile
index e61479dbf..b5abe518f 100644
--- a/shared/Gemfile
+++ b/shared/Gemfile
@@ -12,7 +12,7 @@ gem "google-cloud-location", ">= 0.4", "< 2.a"
 gem "google-iam-v1", ">= 0.4", "< 2.a"
 
 gem "grpc-tools", ">= 1.60.0", "< 1.75.1"
-gem "minitest", "~> 5.16"
+gem "minitest", ">= 5.16", "< 7"
 gem "minitest-autotest", "~> 1.0"
 gem "minitest-focus", "~> 1.0"
 gem "rake", ">= 12.0"
diff --git a/shared/output/cloud/compute_small/Gemfile b/shared/output/cloud/compute_small/Gemfile
index 6442df18f..5b9f71d06 100644
--- a/shared/output/cloud/compute_small/Gemfile
+++ b/shared/output/cloud/compute_small/Gemfile
@@ -3,7 +3,7 @@ source "https://rubygems.org"
 gemspec
 
 gem "google-style", "~> 1.31.1"
-gem "minitest", "~> 5.22"
+gem "minitest", ">= 5.22", "< 7"
 gem "minitest-focus", "~> 1.4"
 gem "minitest-rg", "~> 5.3"
 gem "rake", ">= 13.0"
diff --git a/shared/output/cloud/compute_small/snippets/Gemfile b/shared/output/cloud/compute_small/snippets/Gemfile
index d8db58e2a..fb2ded476 100644
--- a/shared/output/cloud/compute_small/snippets/Gemfile
+++ b/shared/output/cloud/compute_small/snippets/Gemfile
@@ -26,7 +26,7 @@ end
 
 group :test do
   gem "google-style", "~> 1.26.1"
-  gem "minitest", "~> 5.16"
+  gem "minitest", ">= 5.16", "< 7"
   gem "minitest-focus", "~> 1.1"
   gem "minitest-hooks", "~> 1.5"
 end
diff --git a/shared/output/cloud/compute_small_wrapper/Gemfile b/shared/output/cloud/compute_small_wrapper/Gemfile
index 313e46b42..81f1b6bcf 100644
--- a/shared/output/cloud/compute_small_wrapper/Gemfile
+++ b/shared/output/cloud/compute_small_wrapper/Gemfile
@@ -20,7 +20,7 @@ local_dependencies.each do |name|
 end
 
 gem "google-style", "~> 1.30.1"
-gem "minitest", "~> 5.22"
+gem "minitest", ">= 5.22", "< 7"
 gem "minitest-focus", "~> 1.4"
 gem "minitest-rg", "~> 5.3"
 gem "rake", ">= 13.0"
diff --git a/shared/output/cloud/grafeas_v1/Gemfile b/shared/output/cloud/grafeas_v1/Gemfile
index 6442df18f..5b9f71d06 100644
--- a/shared/output/cloud/grafeas_v1/Gemfile
+++ b/shared/output/cloud/grafeas_v1/Gemfile
@@ -3,7 +3,7 @@ source "https://rubygems.org"
 gemspec
 
 gem "google-style", "~> 1.31.1"
-gem "minitest", "~> 5.22"
+gem "minitest", ">= 5.22", "< 7"
 gem "minitest-focus", "~> 1.4"
 gem "minitest-rg", "~> 5.3"
 gem "rake", ">= 13.0"
diff --git a/shared/output/cloud/grafeas_v1/snippets/Gemfile b/shared/output/cloud/grafeas_v1/snippets/Gemfile
index e00094f53..1d7ec8cc7 100644
--- a/shared/output/cloud/grafeas_v1/snippets/Gemfile
+++ b/shared/output/cloud/grafeas_v1/snippets/Gemfile
@@ -26,7 +26,7 @@ end
 
 group :test do
   gem "google-style", "~> 1.26.1"
-  gem "minitest", "~> 5.16"
+  gem "minitest", ">= 5.16", "< 7"
   gem "minitest-focus", "~> 1.1"
   gem "minitest-hooks", "~> 1.5"
 end
diff --git a/shared/output/cloud/language_v1/Gemfile b/shared/output/cloud/language_v1/Gemfile
index 6442df18f..5b9f71d06 100644
--- a/shared/output/cloud/language_v1/Gemfile
+++ b/shared/output/cloud/language_v1/Gemfile
@@ -3,7 +3,7 @@ source "https://rubygems.org"
 gemspec
 
 gem "google-style", "~> 1.31.1"
-gem "minitest", "~> 5.22"
+gem "minitest", ">= 5.22", "< 7"
 gem "minitest-focus", "~> 1.4"
 gem "minitest-rg", "~> 5.3"
 gem "rake", ">= 13.0"
diff --git a/shared/output/cloud/language_v1/snippets/Gemfile b/shared/output/cloud/language_v1/snippets/Gemfile
index 3396ab79b..ce6797099 100644
--- a/shared/output/cloud/language_v1/snippets/Gemfile
+++ b/shared/output/cloud/language_v1/snippets/Gemfile
@@ -26,7 +26,7 @@ end
 
 group :test do
   gem "google-style", "~> 1.26.1"
-  gem "minitest", "~> 5.16"
+  gem "minitest", ">= 5.16", "< 7"
   gem "minitest-focus", "~> 1.1"
   gem "minitest-hooks", "~> 1.5"
 end
diff --git a/shared/output/cloud/language_v1beta1/Gemfile b/shared/output/cloud/language_v1beta1/Gemfile
index 6442df18f..5b9f71d06 100644
--- a/shared/output/cloud/language_v1beta1/Gemfile
+++ b/shared/output/cloud/language_v1beta1/Gemfile
@@ -3,7 +3,7 @@ source "https://rubygems.org"
 gemspec
 
 gem "google-style", "~> 1.31.1"
-gem "minitest", "~> 5.22"
+gem "minitest", ">= 5.22", "< 7"
 gem "minitest-focus", "~> 1.4"
 gem "minitest-rg", "~> 5.3"
 gem "rake", ">= 13.0"
diff --git a/shared/output/cloud/language_v1beta1/snippets/Gemfile b/shared/output/cloud/language_v1beta1/snippets/Gemfile
index 67de998cb..936b0a1b5 100644
--- a/shared/output/cloud/language_v1beta1/snippets/Gemfile
+++ b/shared/output/cloud/language_v1beta1/snippets/Gemfile
@@ -26,7 +26,7 @@ end
 
 group :test do
   gem "google-style", "~> 1.26.1"
-  gem "minitest", "~> 5.16"
+  gem "minitest", ">= 5.16", "< 7"
   gem "minitest-focus", "~> 1.1"
   gem "minitest-hooks", "~> 1.5"
 end
diff --git a/shared/output/cloud/language_v1beta2/Gemfile b/shared/output/cloud/language_v1beta2/Gemfile
index 6442df18f..5b9f71d06 100644
--- a/shared/output/cloud/language_v1beta2/Gemfile
+++ b/shared/output/cloud/language_v1beta2/Gemfile
@@ -3,7 +3,7 @@ source "https://rubygems.org"
 gemspec
 
 gem "google-style", "~> 1.31.1"
-gem "minitest", "~> 5.22"
+gem "minitest", ">= 5.22", "< 7"
 gem "minitest-focus", "~> 1.4"
 gem "minitest-rg", "~> 5.3"
 gem "rake", ">= 13.0"
diff --git a/shared/output/cloud/language_v1beta2/snippets/Gemfile b/shared/output/cloud/language_v1beta2/snippets/Gemfile
index 6d0fcc32a..1e51e6319 100644
--- a/shared/output/cloud/language_v1beta2/snippets/Gemfile
+++ b/shared/output/cloud/language_v1beta2/snippets/Gemfile
@@ -26,7 +26,7 @@ end
 
 group :test do
   gem "google-style", "~> 1.26.1"
-  gem "minitest", "~> 5.16"
+  gem "minitest", ">= 5.16", "< 7"
   gem "minitest-focus", "~> 1.1"
   gem "minitest-hooks", "~> 1.5"
 end
diff --git a/shared/output/cloud/language_wrapper/Gemfile b/shared/output/cloud/language_wrapper/Gemfile
index 1c0fbbf6d..671d9e45d 100644
--- a/shared/output/cloud/language_wrapper/Gemfile
+++ b/shared/output/cloud/language_wrapper/Gemfile
@@ -20,7 +20,7 @@ local_dependencies.each do |name|
 end
 
 gem "google-style", "~> 1.30.1"
-gem "minitest", "~> 5.22"
+gem "minitest", ">= 5.22", "< 7"
 gem "minitest-focus", "~> 1.4"
 gem "minitest-rg", "~> 5.3"
 gem "rake", ">= 13.0"
diff --git a/shared/output/cloud/location/Gemfile b/shared/output/cloud/location/Gemfile
index 6442df18f..5b9f71d06 100644
--- a/shared/output/cloud/location/Gemfile
+++ b/shared/output/cloud/location/Gemfile
@@ -3,7 +3,7 @@ source "https://rubygems.org"
 gemspec
 
 gem "google-style", "~> 1.31.1"
-gem "minitest", "~> 5.22"
+gem "minitest", ">= 5.22", "< 7"
 gem "minitest-focus", "~> 1.4"
 gem "minitest-rg", "~> 5.3"
 gem "rake", ">= 13.0"
diff --git a/shared/output/cloud/location/snippets/Gemfile b/shared/output/cloud/location/snippets/Gemfile
index c81d5ba0d..c3b34e4f0 100644
--- a/shared/output/cloud/location/snippets/Gemfile
+++ b/shared/output/cloud/location/snippets/Gemfile
@@ -26,7 +26,7 @@ end
 
 group :test do
   gem "google-style", "~> 1.26.1"
-  gem "minitest", "~> 5.16"
+  gem "minitest", ">= 5.16", "< 7"
   gem "minitest-focus", "~> 1.1"
   gem "minitest-hooks", "~> 1.5"
 end
diff --git a/shared/output/cloud/noservice_cloud/Gemfile b/shared/output/cloud/noservice_cloud/Gemfile
index 6442df18f..5b9f71d06 100644
--- a/shared/output/cloud/noservice_cloud/Gemfile
+++ b/shared/output/cloud/noservice_cloud/Gemfile
@@ -3,7 +3,7 @@ source "https://rubygems.org"
 gemspec
 
 gem "google-style", "~> 1.31.1"
-gem "minitest", "~> 5.22"
+gem "minitest", ">= 5.22", "< 7"
 gem "minitest-focus", "~> 1.4"
 gem "minitest-rg", "~> 5.3"
 gem "rake", ">= 13.0"
diff --git a/shared/output/cloud/noservice_cloud/snippets/Gemfile b/shared/output/cloud/noservice_cloud/snippets/Gemfile
index f645cff35..e76d927b0 100644
--- a/shared/output/cloud/noservice_cloud/snippets/Gemfile
+++ b/shared/output/cloud/noservice_cloud/snippets/Gemfile
@@ -26,7 +26,7 @@ end
 
 group :test do
   gem "google-style", "~> 1.26.1"
-  gem "minitest", "~> 5.16"
+  gem "minitest", ">= 5.16", "< 7"
   gem "minitest-focus", "~> 1.1"
   gem "minitest-hooks", "~> 1.5"
 end
diff --git a/shared/output/cloud/secretmanager_v1beta1/Gemfile b/shared/output/cloud/secretmanager_v1beta1/Gemfile
index 6442df18f..5b9f71d06 100644
--- a/shared/output/cloud/secretmanager_v1beta1/Gemfile
+++ b/shared/output/cloud/secretmanager_v1beta1/Gemfile
@@ -3,7 +3,7 @@ source "https://rubygems.org"
 gemspec
 
 gem "google-style", "~> 1.31.1"
-gem "minitest", "~> 5.22"
+gem "minitest", ">= 5.22", "< 7"
 gem "minitest-focus", "~> 1.4"
 gem "minitest-rg", "~> 5.3"
 gem "rake", ">= 13.0"
diff --git a/shared/output/cloud/secretmanager_v1beta1/snippets/Gemfile b/shared/output/cloud/secretmanager_v1beta1/snippets/Gemfile
index 0e23268d2..e33c01d7e 100644
--- a/shared/output/cloud/secretmanager_v1beta1/snippets/Gemfile
+++ b/shared/output/cloud/secretmanager_v1beta1/snippets/Gemfile
@@ -26,7 +26,7 @@ end
 
 group :test do
   gem "google-style", "~> 1.26.1"
-  gem "minitest", "~> 5.16"
+  gem "minitest", ">= 5.16", "< 7"
   gem "minitest-focus", "~> 1.1"
   gem "minitest-hooks", "~> 1.5"
 end
diff --git a/shared/output/cloud/secretmanager_wrapper/Gemfile b/shared/output/cloud/secretmanager_wrapper/Gemfile
index cf1a0a3a9..ebd908bd3 100644
--- a/shared/output/cloud/secretmanager_wrapper/Gemfile
+++ b/shared/output/cloud/secretmanager_wrapper/Gemfile
@@ -20,7 +20,7 @@ local_dependencies.each do |name|
 end
 
 gem "google-style", "~> 1.30.1"
-gem "minitest", "~> 5.22"
+gem "minitest", ">= 5.22", "< 7"
 gem "minitest-focus", "~> 1.4"
 gem "minitest-rg", "~> 5.3"
 gem "rake", ">= 13.0"
diff --git a/shared/output/cloud/speech_v1/Gemfile b/shared/output/cloud/speech_v1/Gemfile
index 6442df18f..5b9f71d06 100644
--- a/shared/output/cloud/speech_v1/Gemfile
+++ b/shared/output/cloud/speech_v1/Gemfile
@@ -3,7 +3,7 @@ source "https://rubygems.org"
 gemspec
 
 gem "google-style", "~> 1.31.1"
-gem "minitest", "~> 5.22"
+gem "minitest", ">= 5.22", "< 7"
 gem "minitest-focus", "~> 1.4"
 gem "minitest-rg", "~> 5.3"
 gem "rake", ">= 13.0"
diff --git a/shared/output/cloud/speech_v1/snippets/Gemfile b/shared/output/cloud/speech_v1/snippets/Gemfile
index 82492ab7f..93e94db13 100644
--- a/shared/output/cloud/speech_v1/snippets/Gemfile
+++ b/shared/output/cloud/speech_v1/snippets/Gemfile
@@ -26,7 +26,7 @@ end
 
 group :test do
   gem "google-style", "~> 1.26.1"
-  gem "minitest", "~> 5.16"
+  gem "minitest", ">= 5.16", "< 7"
   gem "minitest-focus", "~> 1.1"
   gem "minitest-hooks", "~> 1.5"
 end
diff --git a/shared/output/cloud/vision_v1/Gemfile b/shared/output/cloud/vision_v1/Gemfile
index 6442df18f..5b9f71d06 100644
--- a/shared/output/cloud/vision_v1/Gemfile
+++ b/shared/output/cloud/vision_v1/Gemfile
@@ -3,7 +3,7 @@ source "https://rubygems.org"
 gemspec
 
 gem "google-style", "~> 1.31.1"
-gem "minitest", "~> 5.22"
+gem "minitest", ">= 5.22", "< 7"
 gem "minitest-focus", "~> 1.4"
 gem "minitest-rg", "~> 5.3"
 gem "rake", ">= 13.0"
diff --git a/shared/output/cloud/vision_v1/snippets/Gemfile b/shared/output/cloud/vision_v1/snippets/Gemfile
index e936b6d0e..8adf58f28 100644
--- a/shared/output/cloud/vision_v1/snippets/Gemfile
+++ b/shared/output/cloud/vision_v1/snippets/Gemfile
@@ -26,7 +26,7 @@ end
 
 group :test do
   gem "google-style", "~> 1.26.1"
-  gem "minitest", "~> 5.16"
+  gem "minitest", ">= 5.16", "< 7"
   gem "minitest-focus", "~> 1.1"
   gem "minitest-hooks", "~> 1.5"
 end
diff --git a/shared/output/gapic/templates/garbage/Gemfile b/shared/output/gapic/templates/garbage/Gemfile
index 6442df18f..5b9f71d06 100644
--- a/shared/output/gapic/templates/garbage/Gemfile
+++ b/shared/output/gapic/templates/garbage/Gemfile
@@ -3,7 +3,7 @@ source "https://rubygems.org"
 gemspec
 
 gem "google-style", "~> 1.31.1"
-gem "minitest", "~> 5.22"
+gem "minitest", ">= 5.22", "< 7"
 gem "minitest-focus", "~> 1.4"
 gem "minitest-rg", "~> 5.3"
 gem "rake", ">= 13.0"
diff --git a/shared/output/gapic/templates/garbage/snippets/Gemfile b/shared/output/gapic/templates/garbage/snippets/Gemfile
index 2aefbd4ce..55dc0700e 100644
--- a/shared/output/gapic/templates/garbage/snippets/Gemfile
+++ b/shared/output/gapic/templates/garbage/snippets/Gemfile
@@ -34,7 +34,7 @@ end
 
 group :test do
   gem "google-style", "~> 1.26.1"
-  gem "minitest", "~> 5.16"
+  gem "minitest", ">= 5.16", "< 7"
   gem "minitest-focus", "~> 1.1"
   gem "minitest-hooks", "~> 1.5"
 end
diff --git a/shared/output/gapic/templates/noservice/Gemfile b/shared/output/gapic/templates/noservice/Gemfile
index 6442df18f..5b9f71d06 100644
--- a/shared/output/gapic/templates/noservice/Gemfile
+++ b/shared/output/gapic/templates/noservice/Gemfile
@@ -3,7 +3,7 @@ source "https://rubygems.org"
 gemspec
 
 gem "google-style", "~> 1.31.1"
-gem "minitest", "~> 5.22"
+gem "minitest", ">= 5.22", "< 7"
 gem "minitest-focus", "~> 1.4"
 gem "minitest-rg", "~> 5.3"
 gem "rake", ">= 13.0"
diff --git a/shared/output/gapic/templates/noservice/snippets/Gemfile b/shared/output/gapic/templates/noservice/snippets/Gemfile
index 706a8f8a6..020130cb4 100644
--- a/shared/output/gapic/templates/noservice/snippets/Gemfile
+++ b/shared/output/gapic/templates/noservice/snippets/Gemfile
@@ -34,7 +34,7 @@ end
 
 group :test do
   gem "google-style", "~> 1.26.1"
-  gem "minitest", "~> 5.16"
+  gem "minitest", ">= 5.16", "< 7"
   gem "minitest-focus", "~> 1.1"
   gem "minitest-hooks", "~> 1.5"
 end
diff --git a/shared/output/gapic/templates/showcase/Gemfile b/shared/output/gapic/templates/showcase/Gemfile
index 6442df18f..5b9f71d06 100644
--- a/shared/output/gapic/templates/showcase/Gemfile
+++ b/shared/output/gapic/templates/showcase/Gemfile
@@ -3,7 +3,7 @@ source "https://rubygems.org"
 gemspec
 
 gem "google-style", "~> 1.31.1"
-gem "minitest", "~> 5.22"
+gem "minitest", ">= 5.22", "< 7"
 gem "minitest-focus", "~> 1.4"
 gem "minitest-rg", "~> 5.3"
 gem "rake", ">= 13.0"
diff --git a/shared/output/gapic/templates/showcase/snippets/Gemfile b/shared/output/gapic/templates/showcase/snippets/Gemfile
index 64bd21158..4a92f9b14 100644
--- a/shared/output/gapic/templates/showcase/snippets/Gemfile
+++ b/shared/output/gapic/templates/showcase/snippets/Gemfile
@@ -34,7 +34,7 @@ end
 
 group :test do
   gem "google-style", "~> 1.26.1"
-  gem "minitest", "~> 5.16"
+  gem "minitest", ">= 5.16", "< 7"
   gem "minitest-focus", "~> 1.1"
   gem "minitest-hooks", "~> 1.5"
 end
diff --git a/shared/output/gapic/templates/testing/Gemfile b/shared/output/gapic/templates/testing/Gemfile
index 6442df18f..5b9f71d06 100644
--- a/shared/output/gapic/templates/testing/Gemfile
+++ b/shared/output/gapic/templates/testing/Gemfile
@@ -3,7 +3,7 @@ source "https://rubygems.org"
 gemspec
 
 gem "google-style", "~> 1.31.1"
-gem "minitest", "~> 5.22"
+gem "minitest", ">= 5.22", "< 7"
 gem "minitest-focus", "~> 1.4"
 gem "minitest-rg", "~> 5.3"
 gem "rake", ">= 13.0"
diff --git a/shared/output/gapic/templates/testing/snippets/Gemfile b/shared/output/gapic/templates/testing/snippets/Gemfile
index 49649821b..bce18f07d 100644
--- a/shared/output/gapic/templates/testing/snippets/Gemfile
+++ b/shared/output/gapic/templates/testing/snippets/Gemfile
@@ -34,7 +34,7 @@ end
 
 group :test do
   gem "google-style", "~> 1.26.1"
-  gem "minitest", "~> 5.16"
+  gem "minitest", ">= 5.16", "< 7"
   gem "minitest-focus", "~> 1.1"
   gem "minitest-hooks", "~> 1.5"
 end